50378350538 has 4 divisors (see below), whose sum is σ = 75567525810. Its totient is φ = 25189175268.

The previous prime is 50378350531. The next prime is 50378350549. The reversal of 50378350538 is 83505387305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83505387305 = 5 ⋅16701077461.

It can be written as a sum of positive squares in only one way, i.e., 38709382009 + 11668968529 = 196747^2 + 108023^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50378350492 and 50378350501.

It is not an unprimeable number, because it can be changed into a prime (50378350531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12594587633 + ... + 12594587636.

Almost surely, 2^50378350538 is an apocalyptic number.

50378350538 is a deficient number, since it is larger than the sum of its proper divisors (25189175272).

50378350538 is a wasteful number, since it uses less digits than its factorization.

50378350538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25189175271.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 50378350538 in words is "fifty billion, three hundred seventy-eight million, three hundred fifty thousand, five hundred thirty-eight".